总振动

根据SWATH船型特点，提出了SWATH初步设计阶段振动分析简化模型的建立方法，并按照该方法对某典型船进行振动分析，求出了该船总振动的固有频率。

A method to establish vibration analysis predigestion model of SWATH during preliminary design is brought forward according to its hull form , and a vibration analysis of a typical SWATH is done and its natural frequency of global vibration is gained by this method .

舰船总振动模糊可靠性分析

Fuzzy Reliability Analysis of Ship Structure under General Vibration Failure Mode

动态刚度阵法在船体总振动计算中的应用

Application of dynamic stiffness matrix method to compute the vibration of ship hull

单体高速客船的垂向总振动预报

Prediction of overall vertical vibration monohull high-speed passenger ship

阐述了渔船总振动的预报方法，编制了预报程序。

The global vibration prediction of fishing vessels is expounded and program is made .

船体总振动计算方法的研究

Study of calculation method of ship hull vibration

渔船总振动的预报方法及程序设计

Global vibration prediction and programing of fishing vessels

船舶总振动建模方法研究

Study on Ship Hull Vibration Model Building

船体垂向总振动固有频率近似计算

On the Approximate Computation of the Natural Frequency of Vertical Modes of Main Hull Vibration

船舶总振动特性研究

The Study of Hull Vibration Characteristics

而总振动是三体船型重要的性能，对三体船总振动方面的研究迫切需要开展，该方向的研究具有非常重要的学术理论意义与工程应用价值。

While vibration is an important performance of the trimaran , there is an urgent need for the research of vibration .

用这种分析方法对一全垫升气垫船船体总振动进行了研究。

Dynamic substructure method is introduced to analyse the coupled vibration of the main hull structure and the machinery and propulsion system .

如果舰船的第一谐调垂向总振动频率正好是遭遇频率的整数倍，这时弯矩的非线性响应将达到极值。

If the first harmonious frequency is just an integral multiple of the wave-encounter frequency , the responses will reach their extreme points .

本文主要对一艘海洋铝合金多功能高速工作船进行总振动的特性分析工作。

In this paper , the main task is to complete the analysis of the total vibration characteristics of an aluminum alloy marine working boat .

本文还对船舶总振动计算的梁模型、平面有限元模型、空间有限元模型作了比较和讨论。

Finally , the three models ( beam model , two-dimensional finite element model and three-dimensional finite element model ) for ship hull structures are compared .

而用三维空间有限元方法计算总振动固有频率是比较准确的，但是耗费时间和精力都比较多。

The results of three dimensions space FEM model calculation has been proved to be more accurate , but it consumes too much time and money .

船舶尾部结构的振动问题应同时从船体总振动和尾部结构的局部振动两方面来考虑。

Both the ship hull vibration and the local vibration of ship stern structures should be taken into consideration in the vibration problem of ship stern structures .

所以本文采用三梁模型对三体船进行简化，进而做总振动计算。运用迁移矩阵法，并且编制了程序语言。

So in this article three-beam model is used to simplify the structure of the trimaran , then transfer matrix method is utilized . At last , programming language is compiled .

对混合有限元模型应用于船体振动分析的方法进行了讨论，并建立了某船的混合有限元模型，分别对其船体总振动和局部振动进行了计算。

A method of analyzing the hull vibration by mixing finite element model is discussed . The mixing finite element model of a ship is established , and its inherent frequencies of overall vibration and local vibration are computed respectively .

船舶作为一种复杂弹性体，船舶总振动属于无限自由度系统的振动，具有无限多个自由度，其自由振动可以分解成无限多个主振动的叠加组合。

As a complex elastomer , the total vibration condition of the ship belongs to the vibration of the infinite-freedom-degree system , with an infinite number of the degrees of freedom . The free vibration can be decomposed into an unlimited number of vibrations .

本文即利用动态刚度阵法对船体总振动以及局部加筋板的固有频率进行计算，为设计人员按振动要求来设计船舶结构提供一个简便有效的计算工具。

In this paper , dynamic stiffness matrix method is applied to calculate the vibration of ship hull and natural frequency of ribbed plate , in order to provide designers with a both convenient and useful computation tool to design the ship structure according to the vibration requirement .

计算结果表明，混合有限元模型的总振动计算结果略小于迁移矩阵法，而局部振动计算结果与孤立模型存在较大差异。

The computing result shows that the result of overall vibration computed by the mixing finite element model is appreciably less than that by matrix transfer method , whereas there is definite difference between the results of local vibration by the mixing finite element model and that by isolated model .

总的振动能量E，为各振动方式的能量之和。

The total vibration energy E is the sum of , energy of all the normal modes .

用ADAMS和NASTRAN软件分析计算了飞轮壳、离合器壳、变速器壳之间连接螺栓的受力、动力和传动系总成振动模态以及3壳体的强度。

Stresses of connecting bolts between the flywheel house and the clutch house and between the clutch house and the transmission case , vibration modes of the powertrain , strength of the three cases are calculated with ADAMS and NASTRAN software respectively .

非线性集总参数振动系统的一个非参数识别方法

A nonparametric identification technique for a variety of discrete nonlinear vibrating systems

但是却没有变化，总的振动能。

And you see that there 's no change in the total vibrational energy .

采用主动悬置的汽车动力总成振动模糊控制

Fuzzy Control System of Automobile Active Power-train Mount

汽车本质上是一个多质量复杂的非线性振动系统，当其受到激励作用或者各部分总成振动作用时，系统将会出现复杂的振动响应。

Automobile is essentially a multi-quality complex nonlinear vibration system . Bing under random incentives or the vibration power of some assemblies , the system will emerge complex vibration response .

针对某六缸发动机半挂牵引车，应用振动ODS方法分析了该动力总成的振动特性，并通过模态试验验证了振动ODS分析结果的正确性。

Aiming at a tractor with six cylinder engine , the vibration characteristics of powertrain are analyzed by using ODS method , the correctness of ODS analysis is validated through modal test .

汽车动力总成弯曲振动实验模态分析中的非线性特性

Nonlinear Characteristics on Experimental Modal Analysis of Automotive Powerplant Bending Vibration